#ifndef __TIMER_H
#define __TIMER_H
#include "gd32f4xx.h"

#define SYSTEMTICK_PERIOD_MS 10

extern uint16_t heart_beat_send;
extern __IO uint32_t g_localtime;
void timer8_config(void);
void timer1_config(void);
void timer2_config(void);
void usart_config(void);
#endif
